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59 We observe that as r both Trr and Trg are equal to the values given in Eq. 10.72-a and 10.72-b respectively.

60 Alternatively, at the edge of the hole when r = a we obtain Trr = Trg = 0 and

which for 0 = and gives a stress concentration factor (SCF) of 3. For 0 = 0 and 0 = n, Tgg = -a0.

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